Method and apparatus for diagnosing fault of negative contactor of battery pack

摘要

Disclosed are an apparatus for diagnosing a short-circuit fault occurring in a cathode contactor of a battery pack and a method thereof. According to the present invention, an apparatus for diagnosing a cathode contactor of a battery pack comprises a first voltage measurement unit, a second voltage measurement unit, a bipolar protective capacitor, a cathode protective capacitor, and a diagnosis unit.